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Mechanical Operations

Mechanical Operations
Dispersion of a gas through liquid is done by using a

Masticator
Sparger
None of these
Kneader

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Mechanical Operations
During size reduction by a jaw crusher, the energy consumed decreases with the

Increasing size of feed at constant reduction ratio
None of these
Decreasing size of product at constant size of feed
Decreasing machine capacity

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Mechanical Operations
For grinding of cereals, grains, spices, pigments, saw dust, cork etc., the most extensively used size reduction equipment is a

Hammer mill
Ball mill
Crushing rolls
Buhrstone mill

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Mechanical Operations
200 mesh screen means 200 openings per

Cm²
Cm
Inch
Inch²

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Mechanical Operations
__________ are mixed using ribbon blenders.

Dry powders
High viscosity liquids
Thick pastes
Lumpy solids and low viscosity liquids

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Mechanical Operations
The filter medium resistance is controlled by

Cake thickness
Flow rate alone
Both pressure drop and flow rate
Pressure drop alone

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